Axle-spindle.



A. J. H

AXLE SPIN APPLICATION I 1911. Y 1,086,166. Patented Feb. 3,1914.

PATENT GFFTCE.

ALPI-IONSO J. HALL, OF BIRMINGHAM, ALABAMA.

AXLE-SPINDLE.

Specification of Letters Patent.

Patented Feb. 3, 1914.

Application filed March 23, 1911. Serial No. 616,435.

To all whom it may concern Be it known that I, ALrHoNso J. HALL, acitizen of the United States, residing at Birmingham, in the county ofJefferson and State of Alabama, have invented new and usefulImprovements in Axle-Spindles, of which the following is aspecification.

This invention relates to improvements in axle spindles and it proposesa removable spindle having certain novel characteristics of constructionand assemblage conducing to its adaptability to any type or weight ofvehicle; to a degree of strength practically equal to that of a solidspindle; to ease of assemblage and disassemblage; and to simplicity andinexpensiveness.

An embodiment of the invention is illustrated in the accompanyingdrawings, wherein Figure l isa longitudinal sectional view showing thespindle fitted upon an axle: Fig. 2 is a perspective view showing theend construction of the axle; Fig. 3 is a perspective view of thespindle; and Fig. 4 is a perspective view of a retaining nut.

Similar characters of reference designate corresponding parts throughoutthe several views.

The axle proper is shown at A and the improved spindle at- B. The axle Ais formed with the usual dust guard 1, with a shoulder 2 concentricwithin the dust guard, and with a stem 3 which projects coaxially fromthe shoulder 2, the stem 3 having a smooth surfaced frusto-conicalportion 4 adjacent the shoulder 2 and which tapers outwardly and havingalso a cylindrical threaded portion 5 which projects from the end of thefrusto-conical portion 4:- The stem 3 fits in a bore extending coaxiallyfrom the inner end of the spindle B and having its surface of an outlinewhich conforms to that of the surface of the stem. The bore thus has aninwardly tapering smooth surfaced portion 6 extending from its inner endand a cylindrical threaded portion 7 extending coaxially from thetapering portion 6. It will be noted that the length of the bore isapproximately only half of the length of the spindle whereby the outerportion of the spindle, as 8, is solid. The provision of the :bore isthus without any weakening efiect on the spindle. The spindle has at itsinner end an annular shoulder 9 of the same diameter as the shoulder 2and which abuts the latter,

the shoulders 2 and 9 conjointly forming a collar. At the outer end ofthe spindle a reduced threaded extension 10 is provided to receive a hubretaining nut- 11 provided with a dust ring 12. a The spindle is shownin assembled relation in Fig. 1. The threaded portions 5 and 7 obviouslycoact to draw the spindle and the axle together when the spindle isrotated in the proper direction. Thereupon the tapering faces at and 6are brought into contact as well the adjacent faces of the shoulders 2and 9. The joint or connection between the axle and the spindle is ofvery strong character and for practical purposes is equal in strength toa solidly connected spindle and axle. The abutting shoulders 2 and 9 aswell as the engaging faces a and 6 prevent any loose play and the stem 3at the points where the greatest stress occurs is of a thickness whichis amply sufiicient to provide for the resistance of stresses.

within the smooth surfaced areas and canfaces, whereas at the pointswhere the parts are positively connected, i. 0. throughout the threadedareas there will be no substantial stresses and consequently noliability of stripping the threads or of otherwise endangering thesecurity of the connection. By providing the thickened frusto-conicalportion :i: and the threaded portion 5 projecting from the end of theportion 4 it is possible to secure the requisite strength and securityof connection between the axle and the spindle without at all weakeningthe latter. This is for the reason that it is necessary to make the boreof the spindle only approximately half of the length of the latterwhereby the outer end half of the spindle is solid and consequently hasa degree of strength equal to that of any ordinary solid spindle.

The assemblage and construction of the spindle is furthermore of suchnature that it can be used in connection with any existing type ofvehicle, light or heavy, and without interference with the dust guardsor rings ordinarily employed. The wheel may be fitted on or removedwithout any manipulation of the spindle or without adjustmentor removalof any parts other than the nut 11 and the assemblage and removal of thespindle may be accomplished with equal facility, all that is necessarybeing Furthermore the stresses occur at points not affect the engagementof the smooth to turn the spindle in the direction necessary forestablishing or disestablishing the connection thereof with the axle.

The spindle may be manufactured at slight expense from a section offorged steel and such manufacture does not require the production of anyextraneous parts such as clamps, sleeves, and the like.

Having fully described my invention, I claim:

1. The combination of an axle having at its end an axially projectingstem formed with a frusto-conical outwardly tapering smooth surfacedportion immediately adjacent the body of the axle and with a threadedcylindrical portion projecting from the frusto-conical portion, aspindle having a bore extending approximately half its length from itsinner end, the bore having a tapering smooth surfaced portion conformingto the frusto-conical portion of the stem and having a threaded portionconforming to the threaded portion of the stem, the outer end half ofthe spindle being solid and terminating in a threaded extension, and ahub retaining nut which is fitted on the extension.

2. The combination of an axle having at its end an axially projectingstem formed with a frusto-conical outwardly tapering smooth surfacedportion immediately ad j acent the body of the axle and with athreadedcylindrical portion projecting from the frusto-eonical portion, the axlealso having an annular shoulder at the larger end of the frusto-conicalportion, a spindle having a bore extending approximately half its lengthfrom its inner end, the bore having a tapering smooth surfaced portioncon- Iorming to the frusto-conical portion of the stem and having athreaded portion conforming to the threaded portion of the stem, thespindle also having at its inner end an annular shoulder adapted to abutagainst the annular shoulder aforesaid, the outer end half of thespindle being solid and terminating in a threaded extension, and a hubretaining nut which is fitted on the extenslon.

3. The combination of an axle having at its end an axially projectingstem formed with a frusto-conical outwardly tapering smooth surfacedportion immediately adja cent the body of the axle and with a threadedcylindrical portion projecting from the frusto-conical portion, the axlealso having an annular shoulder at the larger end of the frusto-conicalportion and a dust ring concentric to the shoulder, a spindle having abore extending approximately half its length from its inner end, thebore having a tapering smooth surfaced portion conforming to thefrusto-conical portion of the stem and having a threaded portionconforming to the threaded portion of the stem, the spindle also havingat its inner end an annular shoulder adapted to abut against the annularshoulder aforesaid, the outer end half of the spindle being solid andterminating in a threaded extension, and a hub retaining nut which isfitted on the extension.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

ALPHONSO J. HALL.

Witnesses l/V. L. ME'roALFE, JNo. B. MCCOY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

